<template>
  <div class="app-container">
    <h2 style="text-align: center">发布新课程</h2>

    <el-steps
      :active="3"
      process-status="wait"
      align-center
      style="margin-bottom: 40px"
    >
      <el-step title="填写课程基本信息" />
      <el-step title="创建课程大纲" />
      <el-step title="发布课程" />
    </el-steps>

    <div class="ccInfo">
      <img :src="coursePublish.cover" />
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray">
          <span>共{{ coursePublish.lessonNum }}课时</span>
        </p>
        <p>
          <span
            >所属分类：{{ coursePublish.subjectName }} —
            {{ coursePublish.typeName }}</span
          >
        </p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>

    <div class="m-center">
      <el-button type="primary" @click="previous">返回修改</el-button>
      <el-button type="success" @click="publishCourse">发布课程</el-button>
    </div>
  </div>
</template>

<script>
import courseAPI from "@/api/edu/course";

export default {
  data() {
    return {
      // 课程id
      courseId: "",
      // 课程发布显示的数据
      coursePublish: {},
    };
  },

  created() {
    //获取路由课程id值
    if (this.$route.params && this.$route.params.id) {
      this.courseId = this.$route.params.id;
      //调用接口方法根据课程id查询
      this.getPublishCourse();
    }
  },

  methods: {
    // 根据课程id查询
    getPublishCourse() {
      courseAPI.getPublishCourse(this.courseId).then((response) => {
        this.coursePublish = response.data;
      });
    },
    // 发布课程
    publishCourse() {
      courseAPI.publishCourse(this.courseId).then((response) => {
        //提示
        this.$message.success("课程发布成功");
        //跳转课程列表页面
        this.$router.push({ path: "/course/list" });
      });
    },
    // 上一步
    previous() {
      this.$router.push({ path: "/course/chapter/" + this.courseId });
    },
  },
};
</script>

<style scoped>
.m-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #ddd;
  margin-bottom: 40px;
  position: relative;
}
.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}
.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}
.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}
.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
